Abstract
Analog multiplication circuits are very important block structures which are widely used in analog signal applications. In analog multiplication circuits, low power consumption is expected with wide bandwidth, low nonlinearity and high input range according to supply voltage. In this study, folded Gilbert cell structure was resized using dynamic threshold MOS (DTMOS) transistors and low power consumption and high bandwidth have been obtained. In improver, the bandwidth was obtained at values of 3.63 GHz, temperature variation, total harmonic distortion and intermodulation products of the proposed multiplier were examined. Monte Carlo analysis was performed and error analysis of the dimensioning of the circuit was examined. In summation to the high bandwidth, a low power consumption of 44.5 µW has been achieved and the supply voltage of 0.2 V has been achieved to operate in full-scale input range.
Highlights
Analog multipliers that are commonly used in analog signal processing applications such as analog and frequency modulation, phase locked-loop, phase shifting and detection, frequency converter, automatic control, artificial neural networks, Neuro-fuzzy systems
The input signal range and bandwidth of analog multipliers operating in the weak inversion region are quite narrow, they are frequently used in low power consumption applications
Simulation results are presented to evaluate the performance of dynamic threshold MOS (DTMOS) based folded Gilbert cell four-quadrant analog multiplier
Summary
Analog multipliers that are commonly used in analog signal processing applications such as analog and frequency modulation, phase locked-loop, phase shifting and detection, frequency converter, automatic control, artificial neural networks, Neuro-fuzzy systems. Since analog multipliers based on CMOS technology have been classified (i) according to the form of the input signal; current or voltage mode (ii) with regard to the operating region of the transistors; weak inversion [8], [11], [12] strong inversion [13], [14], saturation region [15] and linear region [16], [17]. The input signal range and bandwidth of analog multipliers operating in the weak inversion region are quite narrow, they are frequently used in low power consumption applications. In the study of Soltany and Razai [12], the power consumption was reduced by bulk-input, it was seen that the speed and output voltage range were very low.
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